Controlling-valve for acetylene cutting and welding torches.



W. W. VONTODENWARTH. CONTROLLING VAL E FOR ACETYLENI; cunmc ANDWEIDING'TORCHES.

APPLICATION FILED JULY Z51 |9|6- Patented Apr. 10,1917.

II n WALTER W von moneuwemn, or RAHWAY, NEW JERSEY.

concern:

.Be'; it.known that I, WALTER 'W. VON TQDExw'A S'rH, a citizen of theUnited States, v and residing at Rahwny, in the county of l5 Union andState of New Jersey, havein- .vented certain new and usefulImprovemerits; in Controlling-Valves for Acetylene .Cutting ancllVelding Torches, of which the; followingis a specification, such aswill g 1'0 engvble those skilled in the art to which it appertnins tomake and use the same. r This invention relates to controlling vulvesfor acetylene 'gas torches and particuqzlurly'tondeviees, of this'classdesigned both 115 for cutting un'd welding, und the Lobjcct thereof toprovideunimproved device for controllime the supply of oxygen andacetylenei gusto the torch heud \\"hichiis. simple in construction andoperation. convenient of n gmipulntion and which may be used whereverdevices of this class are required.

This application; containing subject-matter taken-{emu a priorapplication filed by me S'Ei tember 24, 1915, Ser. No. 52,334, and.

theinvention is fully disclosed in the folpanying drawing forms a part,in which the separate purts'of my improvel'nent are des} 'ig'natei'l bysuitable reference charactersin each of the views, andlin which Figure lis a sectional side view of my improved acetylene torch when used for orflush bhckchamber (l which forms a part "thereof imd-is'fofthe usualform,

' ji'lheoxygen piper: and acetylene gas pipe 1 with "the'fiesh hack tankor chamber d Ber-Wk as, aghmidle in! the device, and the flsjprovifiedwith a. 'vnlvee and oiygen, supply tube 7 and an lo and which may beconnected with oxygen supplyc'nd with an acetylene'ges-hupply inthe,usuel manner.

[Thepibe c and tube 'f "aremli ced ,in com- Specification of 'LettersPatent.

lowin" s ecification, of which the nccom-v a detail view of a vnlvecontrolling "'pj-pe fl JSIHTOVidd-With av flash back tank,-

PATENT oF IoE;

OQN'I'nOLLING-VALVE FOR ACETYLENE CUTTING AND WELDING 'IQBCHES.

Patented Apr. 10, 1917.

Application filed July 25, 1916; Serial No. 111,106.

inunicution'by passages c in the valve c controlled by a needle valve 6and the tube undthe flash bucli" tank or chamber d are placed incommunication by passages a in the valve 6 controlled-by a-needle valvee and 'the'vnlve e, is the miister or-key va lye of the device, whilethe supply of oxygen; and acetylene gas is controlled by the needlevalves and and by means of this col-l structiou the exact uinount ofoxygen tan'df acetylene Q'us :ullnl'ited to the burneror burner tip niuvbe controlled at all times; and this valve device is u combinattion of'thc muiumaster key valve 6 :l nd the needle m valves and c". V

'lhc torch'hrud o s ofthe |isual'forniz u icl" (lllll])l'lS( :1 main oltcr casing" (lipl'ovidcdif at its upper end with anelbow extension jlal with which the pipe rr'isconnected andzerhfif juccnt thereto with athreaded 's lee v'e i with which ,the pipe (Z is connected an tubularand tupered nozzle h is also i 'jvided; and this nozale' is providedwith extension 7:? whichlits in thejhend-i ond" 50 with u threadedpor'tion h? -wh'ichisc"rews into the 'head a aid the nozzle. kyisjpiiovidcd with an exterior tapered channel'nor pussugzc'lt". the wallsofW-hich are provided l with longitudinal-mosor fins It In the heudVl is:1 chamber d". in which is placed :1 slidahlc' sleeve -i which is closedat, its upper end and open at itsi 'lower end; and the upper end ofwhichis provided with airinwurdly directed"nozzle z", and O 1 the pipe 2(-,om1nuuici1tes with a passage if which communicates with the nozzle1.",1hnd, tlicside walls of the sleeve i arealso pro-f v i j vided withportsor passages i which lore? placed, a predetermined distance belowthe-9 .nozzle 17-, and the acetylene gas pipe d com.- o

inimicuteswjth thejchumber a through a i i. passage a", and said sleevei lsmovable Iongltudmnlly 11] the cimmber a"mnd isflprovided with acollar, 11' between which and I the/part h is placed a spring j whichho'rmally holds sairhsleeve in the position shown in Fig. 1, end "saidsleeve constitutes; a sliding' injector into whichthe 'oxy 1 andacetylene gas are admitted frol'n' 'the Pipes 0 and rl,'and said oxygenand acetylene gas are mingled in tlie sleeve i and passedthrough thelower open 3 end thereof into the discharge nozzle h, and the nozzle his 7 f j provided with s bl jier ti k designed {for *1-1 I use inelding. on; "and; ymeans of the tapereg nozzle 3" the oxygen isdischarged into the sleevez' in a. spray fashion, and the acetylenebeing discharged into'said sleeve below the nozzle a perfect mixture isobtained.

'The object in making the sleeve or sliding injector z movable, as shownand described is to accommodate the device to the expansion andcontraction of the parts un- (ler heat or different degrees of heat, andthe sleeve 't' when made movable, in the manner herein shown anddescribed, will not be destructively affected by the expansion andcontraction of the part a of the head a under varying degrees of heat.

In Figs. 2 and 3 of the drawing, I have shown a slight modificationwhich consists in providin ,the valve 6, or the passages e therein witoppositely directed recesses e which are adapted to operate inconnection with the corresponding ports or passa es in'thevalve head 6and the object of t is construction is to permit the acetylene gas 'topass through the valve 6 in advance of the passage -of the oxygenthrough said valve in order to obtain the proper mixture in the torchhead or to admit acetylene gas therein before the oxygen is admittedinto .My invention is not limited to the use may be used inconnectionwith devices of 24 th day of the construction hereinshown anddescribed I may be made, within the scope of the appended claim, withoutdeparting from the spirit of 'my invention, or sacrificing itsadvantages.

Having fully described my invention, what I claim as new and desire tosecure by Letters Patent, is

In a device of the class described, a ported valve device and a torchhead, acetylene gas and oxygen pipes connected with said valve device, amain key valve rotatably mounted in said valve device and provided withports or passages which correspond with the orts in said valve device,needle valves a justably mounted in said main key valve and adapted tocontrol the passage of acetylene gas and oxygen through said ports orpassages, and means in sald main key valve for permitting the passage ofacetylene 'gas through one of said ports or passages in advance of thepassage of oxygen through the other.

In testimony that I claim the foregoing as my invention 1 have signed myname,-in presence of the subscribing witnesses, this July, 1916.

, WALTER. w. vor TODENWARTB. Witnesses:

H. E. THOMPSON,

C. L, NEWELL;

